年代が上がるにつれ…
as X then Y
年代が上がるにつれ、いつも会うのは難しいです。
As the years go by, meeting often becomes difficult.
Grammar
Noun + につれ/につれて
Verb (dictionary form) + につれ/につれて
につれ is the shortened form
Reference
I forgot which podcast episode this was from but it was from
